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Document ID (ISN)104408
CIS number 05-661
ISBN(s) 2-551-22741-0
Year 2005
Convention or series no. Etudes et Recherches R-418
Author(s) Boutin M., Lesage J., Ostiguy C., Bertrand M.J.
Title Identification and quantification of isocyanates generated in the thermal degradation of polyurethane-based automobile paint
Original title Identification et quantification des isocyanates générés lors de la dégradation thermique d'une peinture automobile à base de polyuréthane [in French]
Bibliographic information Institut de recherche Robert-Sauvé en santé et en sécurité du travail (IRSST), 505 boul. de Maisonneuve Ouest, Montreal (Quebec) H3A 3C2, Canada, 2005. 60p. Illus. 115 ref. Price: CAD 6.42. Downloadable version (PDF format) free of charge.
Internet access [in French]
Abstract Most car paints consist of polyurethanes, polymers obtained by reacting isocyanates with alcohols. During their thermal degradation, polyurethanes may regenerate isocyanates, which can cause asthma, dermatitis, conjunctivitis and acute poisonings. Workers may be exposed to the thermal degradation products of car paints during welding, milling or cutting operations on car body parts. This report presents a systemic approach for studying the thermal degradation process of polyurethanes, in particular the formation of isocyanates and their emission into the air. The results obtained in the laboratory led to the identification of the isocyanates likely to be generated during combustion of the paint. This approach can be used to study the thermal degradation of other polymers such as rubber, polyvinyl chloride and formaldehyde-based polymers.
Descriptors (primary) polyurethanes; isocyanates; exposure evaluation; pyrolysis products; paints
Descriptors (secondary) report; asthma; service stations and repair shops; welding and cutting; health hazards; description of technique; motor vehicle industry
Document type E - Books, reports, proceedings
Country / State or ProvinceCanada
Subject(s) Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Exposure evaluation
Cyano compounds